Neiman Marcus Group is being investigated by states including Connecticut, Indiana and Illinois in regards to its holiday season data breach, according to Bloomberg report.

Connecticut Attorney General George Jepsen, Illinois Attorney General Lisa Madigan and Indiana Attorney General Greg Zoeller are looking into the breach in which cyber thieves stole payment card information from customers, the report said.

Neiman Marcus’ website lists five stores in Illinois but none in Connecticut or Indiana.

Ginger Reeder told Bloomberg in an email that she was unaware of the investigations but the company would cooperate with them.

The Dallas-based luxury retailer confirmed a data breach this past weekend, but did not release information on how many customers were affected. The retailer operates 79 stores in cities across the nation.

Neiman informed federal law enforcement agencies about the breach and is working with the U.S. Secret Service, payment brands, its merchant processor, an investigations, intelligence and risk management firm, and a forensics firm to investigate the situation, Reeder said.

“We have begun to contain the intrusion and have taken significant steps to further enhance information security,” Reeder wrote in an email. “The security of our customers’ information is always a priority and we sincerely regret any inconvenience. We are taking steps, where possible, to notify customers whose cards we know were used fraudulently after making a purchase at our store.”

The news comes after Target revealed that more than 100 million customers may have had their credit card or personal information stolen during a holiday data breach. Target is also the subject of probes from the states of Illinois, Florida, Iowa, Massachusetts and Pennsylvania, Bloomberg reports.